Hello,
Please refer to these articles:
http://benfrain.com/how-to-easily-add-jquery-scripts-to-a-wordpress-child-theme/
http://wordpress.stackexchange.com/questions/26822/how-to-override-javascript-files-in-child-theme
http://themes.simplethemes.com/skeleton/tutorials/how-to-add-custom-css-and-javascript-using-a-child-theme/
https://wordpress.org/support/topic/how-to-add-js-files-to-child-theme
Best regards,
Jack Richardson.















